Detailed Product Description des:16pcs drill setsize:HSS drill bits 2,3,4,5,6,8mm Masonry drill bits 4,5,6,8,10mm Wood working drill bits 4,5,6,8,10mmpacking:steel box standard:DIN338surface:taitnium coatd,black oxide,white finishedprocess:roll forged,edge ground,fully ground